Comparatively And Evaluate Of Tobacco Varieties In Sanmenxia Tobacco Area

In order to resolve the problem of tobacco growing single species and the contradiction of the main variety degradation and provide raw materials for China Tobacco Jiangsu Industry, to select flue—cured tobacco varieties appropriate for planting in Sanmenxia Tobacco Area and to Explore the corresponding cultivation measures, field comparison test of ten varieties were conducted. The qinyan96as control, the growth periods, botanic characteristics, yields, leaf qualities and sensory evaluation of ten variety zhongyan102, zhongyan103, zhongyan104, zhongyan202, zhongyan203, No.1bina, yunyan97, yunyan100, yunyan203and YN105were studied inYinchi, Sanmenxia. The results showed that,(1) The maturity of ten varieties was all about150days, the maturity of ten tested varieties had delayed contrasting in previous years. The growth potential and agronomic characters were poorer than CK and there were significant (p<0.05) or extremely significant(p<0.01) differences. The growth potential of zhongyan102, zhongyan103, zhongyan104, zhongyan202, zhongyan203and qinyan96were vigorous, yunyan100and yunyan203were medium, they were uniform in the field. The growth potential of No.1bina, yunyan97and YN105were poor, inadequate uniform.(2) Incidence and disease index of zhongyan202and zhongyan203were lowest, the tobacco wide fire incidence and disease index of zhongyan202was0.8, the tobacco angular leaf spoot incidence and disease index of zhongyan203was1.1, the other incidence and disease index of zhongyan202and zhongyan203were0, zhongyan102, zhongyan103, zhongyan104, No.1bina, yunyan203and YN105were medium, yunyan97and yunyan100were high.(3)In production value, yield, the average price and the proportion of superior of zhongyan202were136.87Kg,2719.13yuan·mu-1,19.87yuan and82.7%, the economic character of zhongyan202was the best, followed by zhongyan203,there were not significant(p>0.05)differences between zhongyan202and CK, zhongyan203was poorer than CK significantly(p<0.05),the other tested varieties were poorer than CK significantly (p<0.05)or extremely significantly(p<0.01).(4) The appearance quality of flue-cured tobacco leaves of zhongyan202and zhongyan203were better than CK, the other tested varieties were poorer than CK,the chemical compositions of flue-cured tobacco leaves of zhongyan202and zhongyan203were conformity generally, chemical usability index of zhongyan202and zhongyan203were0.74and0.75, higher than CK(0.64).That of zhongyan102, zhongyan103, zhongyan104and yunyan203were lower than CK, No.1bina, yunyan100, yunyan97and YN105were lowest.The total scores sensory evaluation of zhongyan203was69.5, higher than CK(65.5). The total scores sensory evaluation of zhongyan202was same as CK, that of zhongyan102, zhongyan103, zhongyan104and yunyan97were lower than CK, No.1bina, yunyan100, yunyan202and YN105were lowest. The value of Angle cosine value of zhongyan202varieties reached the maximum1.0012, illustrated that these were closest chemical index demand with Jiangsu tobacco raw materials.According to comprehensive performance of test varieties at the local, this study believed that the total performance of zhongyan202and zhongyan203were best, should continue to demonstrate to provide the reference and scientific basis for the update and rational layout.